Exhaust device
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing exhaust devices struggle with reduced efficiency when installed far from pollution sources due to increased distance, leading to high noise and installation costs, and are complex and difficult to miniaturize.
Innovation Solution
An exhaust device with a simplified structure featuring concentrically arranged guide plates and multiple exhaust ports, which efficiently guide and discharge polluted air without a swirler or separate motor, allowing for miniaturization and reduced manufacturing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a swirler with multiple blades and a separate motor are used to form a vortex, then exhaust efficiency is improved, but device complexity and weight increase
Solution Approach 1:
The patent extracts and eliminates the swirler and separate motor from the exhaust device configuration. Instead of using a complex vortex-forming mechanism, the invention uses a simplified housing with strategically positioned intake and exhaust ports that naturally guide air flow, thereby maintaining exhaust efficiency while dramatically reducing device complexity and weight.
Solution Approach 2:
The patent replaces the mechanical vortex-forming system (swirler with motor) with a passive aerodynamic design. The housing geometry and port positioning create natural air flow patterns that achieve the same exhaust function without moving parts, eliminating the need for complex mechanical components.
2Productivity
If an exhaust device with complex structure including swirler and guide member is used, then exhaust efficiency is improved, but manufacturing cost increases
Solution Approach 1:
The patent removes the swirler and complex guide member structures that increase manufacturing cost. The simplified design uses only essential housing components with optimized port positions, eliminating expensive parts while maintaining the ability to efficiently exhaust air from distant pollution sources.
Solution Approach 2:
The housing structure performs multiple functions simultaneously: it guides air flow, creates the exhaust pathway, and positions the ports to achieve distant pollution source coverage. This multi-functionality eliminates the need for separate specialized components, reducing manufacturing cost while maintaining exhaust efficiency.
3Productivity
If exhaust device components are increased to handle distant pollution sources, then exhaust efficiency is improved, but device weight increases
Solution Approach 1:
The patent replaces heavy mechanical vortex-generating components with a lightweight aerodynamic housing design. The air flow guidance is achieved through strategic port positioning and housing geometry rather than through heavy swirler mechanisms, significantly reducing device weight while maintaining the capability to exhaust from distant pollution sources.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Improves exhaust efficiency by effectively sucking in and discharging polluted air from a distance, reduces complexity and weight, and lowers power consumption, enabling miniaturization.
Implementation Method 1
a guide means provided inside the housing and configured to guide air introduced into the housing through the intake port
Data Source
AI summary
An exhaust device includes a housing including an intake port and a plurality of exhaust ports, a guide means provided inside the housing and configured to guide air introduced into the housing through the intake port, and an exhaust means directly or indirectly connected to the plurality of exhaust ports. The plurality of exhaust ports include a first exhaust port located at a position corresponding to the center of the intake port and a plurality of second exhaust ports distributed in a rear wall of the housing while being spaced apart from the first exhaust port by an interval. The guide means includes a plurality of guide plates arranged between a front wall and the rear wall of the housing.